Please help me answer these questions, well explained. A spacecraft travelling at a speed of 0.95 c goes from the planet Jupiter to the planet Pluto. A. If an observer on planet Jupiter measures the length of the vessel as 55 m, how long is it when it is stationary? B. A monkey inside the ship has a pulse of 116 beats/min when he is on the earth. What is his pulse inside the ship?

An elementary particle has an average lifetime of 2.60*10^-8s. In a high-energy particle accelerator, these particles reach a very high speed and are found to have a lifetime of 2.60*10^-7s. What speed are the particles moving at in this experiment? a) 10.0 c   b) .999c   c) .995c   d) .955c   e) .880c   f) .5c

A particle is moving at a speed of 0.925c and travels from one end of a 50 m long Physics lab to the other. How long is the lab if measured when moving with the particle?   A.    132 m   B.    19 m   C.    16 m   D.    50 m   E.    149 m

1. Two cars are traveling at constant speed along a road in the same direction. Car A moves at 60 km/h and car B moves at 40 km/h, each measured relative to an observer on the ground. What is the speed of car A relative to car B? 2. A supersonic plane moves away from you, and in the +x direction, at a speed of 1000 m/s relative to you. A second plane, traveling in the same direction and ahead of the first plane, moves away from you, and away from the first plane, at a speed of 500 m/s relative to the first plane. How fast is the second plane moving relative to you? 3. Astronauts in a spaceship traveling at v = 0.6c relative to Earth sign off from space control, saying that they are going to nap for 1.00 h and then call back. How long does their nap last as measured on Earth? 4. A stick that has a proper length of 1 m moves in a direction parallel to its length with speed v relative to you. The length of the stick as measured by you is 0.914 m. What is the speed v? T 5. Muons are…

The fictional rocket ship Adventure is measured to be 80 m long by the ship's captain inside the rocket.When the rocket moves past a space dock at 0.5c. As rocket ship Adventure passes by the space dock, the ship's captain flashes a flashlight at 1.60-s intervals as measured by space-dock personnel. Part A How often does the flashlight flash relative to the captain? Express your answer to two significant figures and include the appropriate units. HẢ ? At = Value Units

Newly sprouted sunflowers can grow at the rate of 0.30 in. per day. One such sunflower is left on Earth, and an identical one is placed on a spacecraft that is traveling away from Earth with a speed of 0.97 c. Part A How tall is the sunflower on the spacecraft when a person on Earth says his is 1.7 in. high? Express your answer using two significant figures. VE ΑΣΦ h = Submit = Previous Answers Request Answer ? X Incorrect; Try Again; 2 attempts remaining in. Review

7. The speed of a particle increases by a factor of (100) from (0.0098c) to (0.98c). By what factors do its momentum and kinetic energy increase? Do your calkulations using both the relativistic and the classical approaches.

A spaceship leaves Earth traveling at 0.60 c. A second spaceship leaves the first at a speed of 0.90 c with respect to the first. Calculate the speed of the second ship with respect to Earth if it is fired in the same direction the first spaceship is already moving. Express your answer using two significant figures. ΑΣΦ 画 ? Submit Request Answer Part B Calculate the speed of the second ship with respect to Earth if it is fired directly backward toward Earth. Express your answer using two significant figures. ΑΣφ ? Submit Request Answer II

1. A rocket flies toward the earth at c, and the captain shines a laser light beam in the forward direction. Which of the follow- ing statements about the speed of this light are correct? (There may be more than one correct answer.) A. The captain measures speed c for the light. B. An observer on earth measures speed e for the light. C. An observer on earth measures speed c for the light. D. The captain measures speed c for the light.

What are (a) the kinetic energy, (b) the rest energy, and (c) the total energy of a 1.2 g particle with a speed of 0.80 c ? Part A Express your answer using two significant figures. ΜΕ ΑΣΦ Ekinetic=263 Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining Part B Express your answer using two significant figures. ΜΕ ΑΣΦ Erest = Submit Request Answer Part C Express your answer using two significant figures. ΜΕ ΑΣΦ Etotal = Submit Request Answer ? ? ? J J J